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Using Waterwise Landscape
Principles to Address Increasing
Water Demand
Courtney BrownConservation Programs Manager
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Where Does Our
Water Come From?
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Jordan Valley Water Conservancy District
Most water supplies are imported to Salt Lake Valley
2009 Municipal Water Supplies :
Source Yield (AF) Portion of Total
Salt Lake Valley
groundwater and streams15,664 19%
Weber River 9,588 12%
Provo River 49,131 60%
Duchesne River 6,992 9%
TOTALS 81,375 AF
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Conservation Goals and Programs
Statewide Goal
◦ 25% gpcd reduction by 2050
JVWCD Goal
◦ 25% gpcd reduction by 2025
Programs
◦ Water Checks
◦ Classes and Fairs
◦ Demonstration Gardens
◦ Member Agency Assistance
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“…3.2 percent increase from 2006 represents a record increase of
84,425 persons, approximately the population of Ogden, Utah.”
-Utah Population Estimates Committee, Nov 15, 2007
Population Growth is the Primary
Reason to Conserve Water
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Population Projections for Utah
Year
Salt Lake County JVWCD
Population Growth Population Growth
2010 1,053,258 652,814
2030 1,131,519 42% 891,201 72%
2050 1,663,994 72% 1,102,977 112%
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DROUGHT CYCLES
Sources: Gray et al (JAWRA) and Gray et al (Ecology)
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0
50
100
150
200
250
300
2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 2050
Th
ou
san
d A
cre
-Feet
Year
Jordan Valley Water Conservancy District Drought Year Water Supply Plan
(With 25% Conservation by 2025)
Bear River
Waste Water Recycling Phase 2
Jordan River / Utah Lake M & I Treatment Phase 1
ULS
Central Water Project (CWP)
Waste Water Recycling Phase 1
Southwest Jordan Valley Groundwater Project
Existing JVWCD Water Supplies,
JVWCD Demand w/ 25% Conservation by 2025
Est. Demand Assuming 2000 Usage Rates
Historical Demand
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JVWCD – How Much Water Does the
Average person Use Per Day?
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0
5,000
10,000
15,000
20,000
25,000
30,000
Jan Feb March April May June July Aug Sept Oct Nov Dec
Acre-f
eet
JVWCD Service Area Water Deliveries 2009
Outdoor
Indoor
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Groundbreaking for
WaterSmart Education Center
April 27, 2010
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WaterSmart Education Center
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Waterwise Landscapes
Sometimes referred to as “Xeriscapes”
◦ Not “Zeroscapes”
◦ We use waterwise
Waterwise landscapes:
◦ Vary by region
Use native and drought adapted plants
◦ Require little input
◦ Are beautiful
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Waterwise Landscape Principles
1) Planning and Design
2) Soil Analysis
3) Practical Turf Areas
4) Appropriate Plant Selection
5) Efficient Irrigation
6) Use Mulches
7) Appropriate Maintenance
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50.00
25.82
18.60
15.27
18.10
5.64
0.00 0.00 0.00
19.47
12.68 13.3314.74
8.32
0.02
32.76
7.51
0.00
5.00
10.00
15.00
20.00
25.00
30.00
35.00
40.00
45.00
50.00W
ate
r A
pp
lied
in
In
ch
es
2009 Water Use Comparison
Neighborhood Landscapes
2006-2008 Avg. 2009
*3 year average (1998-Present) for residential sites in Salt Lake County Water Check Program
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Planning and Design
Master Plan
◦ Creates design
cohesiveness
◦ Helps to determine
order of importance
Steps:
◦ Site Analysis
◦ Concept Plan
◦ Planting Plan
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Hydrozones
Group plants
according to water
needs
◦ Irrigation needs based
on most water
consumptive plants
Don’t mix:
◦ Trees and lawn
◦ Annuals and perennials
◦ Shrubs and vegetables
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Soil Analysis and Amendment
Benefits
◦ Helps when scheduling
irrigation/fertilization
◦ Useful during plant
selection
Know your soil
◦ Lab test
www.usual.usu.edu
Amend your soil?
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Practical Turf Areas
Benefits
◦ Decreased water and
chemical needs
Water waste is a
behavioral problem
◦ Many benefits to
limited areas of grass
Removing grass
◦ Focus on non-essential
areas
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Appropriate Plant Selection
Match plants to
location, not location
to plants
◦ Decreases maintenance
◦ Increases plant health
Things to consider
◦ Mature size
◦ Preferred conditions
◦ Bloom colors
◦ Seasonal changes
◦ Hardiness
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Plant Information Sources
Local nurseries
◦ www.utahschoice.org
Catalogs and Internet Databases
◦ www.highcountrygardens.com
◦ www.mobot.org/gardeninghelp/plantfinder/Alp
ha.asp
◦ www.conservationgardenpark.org
◦ http://hort.ufl.edu/trees
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Efficient Irrigation
Benefits
◦ Water savings
◦ Healthier plants
Irrigation Tips
◦ Proper design
Head to head coverage
Same irrigation in each
zone
◦ Adjust irrigation
seasonally
◦ Test system regularly
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Use Mulches
Benefits:◦ Moisture retention
◦ Weed reduction
◦ Addition of organic matter
Organic◦ Shredded bark
◦ Chipped wood
◦ Pine needles
◦ Cocoa mulch
Inorganic◦ Gravel and colored rocks
◦ Tumbled glass
◦ Chat
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Appropriate Maintenance
Design to reduce maintenance
◦ Avoid placing objects in lawn areas
◦ Contain spreading plants
◦ Provide easy access
Timely maintenance
◦ Weed and pest control
◦ Pruning and deadheading
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Resources Internet
◦ www.ConservationGardenPark.org
◦ www.SlowtheFlow.org
◦ www.conservewater.utah.gov
Books◦ Dirr’s Hardy Trees and Shrubs
Michael A. Dirr, Timber Press
◦ Waterwise: Native Plants for Intermountain Landscapes
USU Press
◦ Landscaping on the New Frontier
USU Press
◦ Xeriscape Plant Guide
Denver Water
◦ The Color Encyclopedia of Ornamental Grasses
Rick Darke
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Questions